OutputCollector (Flink : Runtime 2.1.0 API)

java.lang.Object
- org.apache.flink.runtime.operators.shipping.OutputCollector<T>

All Implemented Interfaces:

org.apache.flink.util.Collector<T>
```
public class OutputCollector<T>
extends Object
implements org.apache.flink.util.Collector<T>
```
The OutputCollector collects records, and emits them to the RecordWriters. The OutputCollector tracks to which writers a deep-copy must be given and which not.

Constructor Summary

Constructors
Constructor	Description
`OutputCollector(List<RecordWriter<SerializationDelegate<T>>> writers, org.apache.flink.api.common.typeutils.TypeSerializer<T> serializer)`	Initializes the output collector with a set of writers.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`close()`
`void`	`collect(T record)`	Collects a record and emits it to all writers.
`List<RecordWriter<SerializationDelegate<T>>>`	`getWriters()`	List of writers that are associated with this output collector

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - OutputCollector
```
public OutputCollector(List<RecordWriter<SerializationDelegate<T>>> writers,
                       org.apache.flink.api.common.typeutils.TypeSerializer<T> serializer)
```
    Initializes the output collector with a set of writers. To specify for a writer that it must be fed with a deep-copy, set the bit in the copy flag bit mask to 1 that corresponds to the position of the writer within the List.
    
    Parameters:
    
    writers - List of all writers.
- Method Detail
  - collect
```
public void collect(T record)
```
    Collects a record and emits it to all writers.
    
    Specified by:
    
    collect in interface org.apache.flink.util.Collector<T>
  - close
```
public void close()
```
    Specified by:
    
    close in interface org.apache.flink.util.Collector<T>
  - getWriters
```
public List<RecordWriter<SerializationDelegate<T>>> getWriters()
```
    List of writers that are associated with this output collector
    
    Returns:
    
    list of writers